Lu Wan

Lu Wan was a Chinese vassal king of the early Han dynasty. A close friend of Liu Bang, the founding emperor of the Han dynasty, he fought on Liu's side as a general during the rebellions against the Qin dynasty, the Chu–Han Contention against Liu's rival Xiang Yu, and against other hostile vassal kings in the early part of Liu's reign as emperor. For his contributions to the establishment of the Han dynasty, Lu Wan was made a vassal king – King of Yan (燕王) – by Liu Bang in 202 BC. In 195 BC, sensing that Liu Bang had doubts about his loyalty, Lu Wan fled and defected to the Xiongnu, who made him King of Donghu (東胡王), and lived among them for about a year until his death.